APA (7th ed.) Citation

Comas, D., Calafell, F., Mateu, E., Pérez-Lezaun, A., Bosch, E., & Bertranpetit, J. (1997). Mitochondrial DNA variation and the origin of the Europeans. Springer.

Chicago Style (17th ed.) Citation

Comas, D., F. Calafell, E. Mateu, A. Pérez-Lezaun, E. Bosch, and J. Bertranpetit. Mitochondrial DNA Variation and the Origin of the Europeans. Springer, 1997.

MLA (9th ed.) Citation

Comas, D., et al. Mitochondrial DNA Variation and the Origin of the Europeans. Springer, 1997.